If u have large hydrosalpinx, better to go for laparoscopy before ivf as chances of pregnancy with hydrosalpinx would b reduced by half. Alongside rule out tubercular infection. If tubes can b opened at laparoscopy try 6 months naturally. If doesn' t work out proceed for ivf.

Recanalisation ie reopening of tubes by surgery, unfortunately, has limited success of about 20-25% and also depends on whether open or laparoscopic surgery was done, how was tube blocked, how long ago etc. The surgery needs to be done by an expert in this surgery, else in today's era with good results, IVF tends to be a better and a more viable option

It's difficult to ascertain fertile days with irregular periods. Infact you may need help with medicines to ovulate as you are having irregular periods. See a specialist to check that and Do hormonal tests and Ultrasound as advised

Unfortunately endometriosis and chocolate cysts are persistent and are infact progressive in nature rather than coming and going. My sincere advice would be not to waste time and see a specialist for proper Care and treatment.

Home pregnancy tests are now very sensitive and can confirm pregnancy even after 1 day of missed period. Hence I would recommend doing a urine test at home. If you want to be very sure, Do q blood test for beta hcg which would b confirmatory.

Irregular periods usually signal an ovulation disorder ie abnormality in egg formation hence is most probably a contributing factor in difficulty in conception. You need to undergo hormonal blood tests and Ultrasound to determine the cause and management accordingly

With a history of prior abortion, we must rule out damage to tubes and uterine lining. Hence do tubal test such as hsg/ hysterolaparoscopy if not yet done and further management should b based on these results

Your irregular periods seem to be the reason for infertility and you should do usg and blood tests to determine reason. Removal of appendix sometimes can damage tubes hence tubal testing should be done. Regular Sex is healthy and would enhance chances of conception. Try to increase frequency during your fertile periods, usually between day 10 n day 18 of cycle if regular 27-28 day cycle